Polymer
Rust-proofing agent
Electrode
Transducer
Transistor
Etching
http://en.wikipedia.org/wiki/Fuel_cell
Peptide
Cyclic olefin-based resin
Gelling agent
Ion secondary battery
Memory device
Anti-oxidizing activity
Analyzer
http://en.wikipedia.org/wiki/Legionella
Preserving a food
Drive assistance device